Ire-and-pscket-fence machine



(No Model.) F H DUMBAULD 2 Sheets-Sheet 1.

WIRE AND PIOKETIENCE MAGHINB. No. 557,778. Patented Apr. 7, 1896.

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UNITED STATES PATENT OFFICE.

FREDERICK ll. DUMBAULD, OF MCCUNE, KANSAS.

NlRE-ANb-PlCKET-FENCE MACHINE.

SPECIFICATION forming part of Letters Patent No. 557,778, dated April'7, 1896.

Application filed October 15, 1895. Serial No. 56 5,771. (No model.)

To aZZ whom it may concern.-

Be it known that I, FREDERICK II. DUM- BAULD, a citizen of the UnitedStates, residing at McCune, in the county of Crawford and State ofKansas, have invented certain new and useful improvements inPicket-Fence Machines; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to machines for twisting the wires ofpicket-fences; and it consists in the novel construction and combinationof the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a front view of the machine. Fig. 2 is aside and Fig. 3 is a plan view of the wire-twister. Fig. 4: is an endview of the tension-block for the wires.

A is a low carriage provided with a grooved guide a on its uppersurface. The carriage A is supported at one end by the wheels A and atthe other end by the runners to. The wheels and runners permit thecarriage to be slid along the ground without difficulty and the runnersprevent the carriage from slipping or sliding when not required to doso,

'as they afford a longer base than wheels.

B is a base-plate provided with rollers b, which run in the guide a.

C is the vertical upright of the wire-twister, pivoted to the base B bythe pin b.

B is a brace provided with a slot 0 at one end. The lower end of thebrace is pivoted to the base by the pin 0, and d is a pin which projectsfrom the upright and engages with the slot 0.

C is a thumb-nut screwed on the pin 0' for clamping the brace after theupright has been set in a perpendicular position.

D are two fence-posts secured in the ground in any approved manner, andd is a stretcherbar placed between the tops of the posts D.

The fence may be made of any desired length; but only one panel of it isshown in the drawings.

E is an anchor-post secured in the ground at one end of the fence, and eis a brace be tween the top of the post E and the post D at that end ofthe fence.

E is the anchor-bar for the picket-wires, attached to the post E by thewires or rods 6.

F is the tension-post secured in the ground at the other end of thefence, and f is a brace between the post E and the fence-post D at thatend of the fence.

G are the wires which fasten the pickets in position, and g are some ofthe pickets.

F are the tension-blocks, each formed of two plates coupled together bya bolt f.

G is a thumb-nut on the bolt f, and g is a thick washer of india-rubberplaced between thin metallic washers and interposed between the topplate of the tension-block and the thumb-nut.

Each pair of wires G is fastened at one end to the anchor-bar and passesbetween the plates of a tension-block at the other end.

H is an ordinary rope tackle securing each tension-block to thetension-post. The wires are drawn tight by the tackle and the-tension isregulated by the thumb-nut. The wires slip in the tension-block whenstrained to the prearranged limit.

H are twisting-brackets, each formed of two similar halves securedtogether and to the upright O. A twisting-disk h is j ournaled in eachbracket H, and h is a toothed wheel formed on the central portion of thetwistingdisk and revolving between the side plates of thetwisting-bracket. The disk h is provided with two eccentric holes 2' forthe wires to pass through.

I is a toothed bar sliding in the twistingbrackets against the frontface of the upright and gearing into all the wheels 71. Teeth i are alsoformed on the side of the bar I.

J is a toothed wheel secured on a shaft j, which is j ournaled in abracket j, secured to the side of the upright. A crank-handle J issecured to the shaft j, and the wheel J gears into the teeth 2'.

K are beaters secured to the upper and lower parts of the upright andprojecting forward past the pickets.

The use of the anchor post and bar enables the picket fence to bestarted at the end post and secured thereto. The pickets are insertedbetween the wires and the wires are all twisted simultaneously byturning the crankhandle. The wires are twisted in opposite directionsbetween the successive pickets. The pickets are pushed laterally intoposition by sliding the upright upon the carriage. The beaters strikethe end picket, and K are handies secured to the upright for sliding itback and forth. The wires slide between the plates of the tension-blocksas the pickets are secured in position.

The tension-post beyond the end of the fence permits the fence to beformedup to the end post, so that the end picket can be secured to theend post before the tension is slackened.

What I claim is 1. In a picket-fence machine, the combination, with acarriage provided with wheels at one end and runners at the other, of abaseplate slidable on the carriage, an upright car rying wire-twistingdevices and pivoted to the said base, a pin projecting from the upright,a brace pivoted to the base at one end and provided with a slot at itsother end engaging with the said pin,and a thumb-nut screwed on the saidpin and operating to secure the brace after the upright has been setperpendicular, substantially as set forth.

2. In a picket-fence machine, the combination, with a slidable carriage,wheels supporting one end of the carriage, and runners supporting itsother end; of a base slidable on the said carriage, and an upright andwiretwisting devices carried by the said base, substantially as setforth.

In testimony whereof I affix my signature in presence of two witnesses.

FREDERICK H. DUMBAULD.

\Vitnesses:

P. P. ROBERTS, WM. H. HORNER.

